Is the toml to env converter free?

Yes, completely free. No sign-up, no daily limit, no watermark on the output.

How are nested TOML tables converted?

Nested tables are flattened with underscores and uppercased. For example, [database] with key host = "localhost" becomes DATABASE_HOST=localhost.

Are TOML arrays supported?

Yes. Arrays are joined into comma-separated values in a single environment variable, which most frameworks can split back into a list.

Are values quoted automatically?

Strings are output without quotes unless they contain spaces or special characters that require quoting for the .env parser.

Is the output compatible with Docker, Node.js, and Python?

Yes. The generated .env format works with Docker --env-file, Node.js dotenv, python-dotenv, and most modern frameworks.

Is it safe for secrets?

Yes. All processing happens in your browser, so your TOML (including any secrets) never leaves your device. Still, treat the .env output like any sensitive file: don't commit it, and don't paste it into untrusted tools.

TOML to ENV Converter Online

What is TOML to ENV Conversion?

TOML to ENV conversion takes a TOML config file and rewrites it as a flat .env file, the kind of KEY=VALUE list that almost every modern app reads to load environment variables. TOML is structured and typed; .env is intentionally simple. A toml to env converter walks your TOML, flattens tables with underscores, uppercases the keys, and writes them as one variable per line. If you've used Node.js with dotenv, Python with python-dotenv, Docker, Vercel, Netlify, or any cloud platform, you already know .env files.

Why Convert TOML to ENV?

Environment variables are how modern apps separate config from code. The 12-factor pattern, container deployments, and most CI/CD platforms expect .env-style key-value pairs. If your project's config lives in TOML but deployment expects environment variables, a toml to env conversion is the fastest way across. Use this tool when you need to migrate TOML config into a Docker container or Kubernetes secret, generate .env files for CI/CD pipelines, prepare environment variables from project TOML files, or bulk-import variables into Vercel, Netlify, or Heroku.

How Our TOML to ENV Converter Works

When you click Convert, the tool parses your TOML, walks the tree, flattens nested tables with underscores, uppercases everything to follow the env-var convention, and writes them as KEY=value lines. Special characters like spaces or quotes inside values are escaped or wrapped in quotes so the .env parser handles them correctly. Arrays are joined into comma-separated strings. The conversion runs fully in your browser, which matters extra here since .env files often hold secrets. Nothing leaves your device.

Features You Get

Automatic key flattening: nested TOML tables become PARENT_CHILD style names.
Uppercase normalization: keys are converted to the standard ENV variable case.
Type preservation: numbers and booleans are written cleanly without surprise quoting.
Safe value escaping: values with spaces or special characters are quoted automatically.
Privacy-first: pure browser conversion, no server round-trip, even for secrets.
Upload support: load a .toml file from your device or drag-and-drop it into the input.

How to Use the Tool

Paste your TOML config into the input panel, or use the Upload File button to load a .toml file.
Click the Convert button to generate the .env output.
Skim through and verify the key names look the way your app expects.
Click the Copy button and paste the .env content into your project.

Common Use Cases

Local development: turning a shared TOML config into a personal .env for running services locally.
Docker deployments: generating env vars to feed into containers via --env-file.
CI/CD pipelines: preparing secrets and config variables for build and deploy steps.
Cloud platforms: bulk-importing variables to Vercel, Netlify, Render, or Heroku.

Example Conversion

Input (TOML)

[database]
host = "localhost"
port = 5432

[app]
debug = true

Output (ENV)

DATABASE_HOST=localhost
DATABASE_PORT=5432
APP_DEBUG=true

Frequently Asked Questions

Related Converters

ENV to TOML TOML to JSON YAML to ENV